Steering device and tractor applying same

Abstract

The utility model relates to the technical field of tractors, in particular to a steering device and a tractor applying the same. The steering device comprises a connecting piece, an operation assembly rotationally arranged on the connecting piece and a front wheel assembly rotationally arranged below the connecting piece. The adjusting assembly is arranged below the operation assembly and used for switching the operation assembly and the connecting piece to be connected into a whole or switching the operation assembly and the front wheel assembly to be connected into an integrated structure. The connecting relation between the operation assembly and the connecting piece or the front wheel is changed through the adjusting assembly, so that one steering device adapts to tractors under different working conditions, application of multiple working condition scenes is achieved, an operator can conduct flexible adaptation according to different working conditions, the optimal operation mode is achieved, the safety and smoothness of the steering device in the using process are improved, and the application range is wide. And the labor intensity of an operator is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tractor technology, and in particular to a steering device and a tractor using the device. Background Technology

[0002] With the rapid expansion of industries such as e-commerce and logistics that require temporary material handling, the demand for efficient and easy-to-operate tractor units is constantly increasing. This places higher demands on the steering devices of tractor units, requiring them to be able to quickly adjust the traction status for different working conditions in order to achieve efficient, safe and stable material handling.

[0003] Chinese patent CN216508415U discloses a universal modular traction mechanism. This mechanism includes a traction housing module with a drive axle module for providing traction power located below it. The sidewall of the traction housing module can connect to three different steering mechanisms: a first steering mechanism, a second steering mechanism, and a third steering mechanism. The first steering mechanism includes a fixed handle and a mounting plate, with the mounting plate located below the fixed handle. Both the fixed handle and the mounting plate are fixedly mounted on the sidewall of the traction housing module. This modular design allows the traction mechanism to be universally applicable, enabling the traction housing to accommodate different types of steering mechanisms. The diverse steering mechanism designs allow customers to select different traction vehicle steering mechanisms based on their usage requirements and applications, meeting specific needs. The mechanism is easy to connect and install, effectively reducing production costs and facilitating the production of traction mechanisms.

[0004] However, this technical solution achieves a detachable and diversified structure for the traction mechanism, requiring the replacement of different traction mechanisms to meet different working conditions, and cannot achieve the applicability of a single traction mechanism to multiple working conditions. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a steering device that, through adjusting components, changes the connection relationship between the operating assembly and the connecting parts or the front wheels, enabling a single steering device to adapt to different working conditions of the tractor, thereby achieving multi-working-condition application. Furthermore, the operator can flexibly adapt to different working conditions to achieve the optimal operating mode, improving the safety and smoothness of the steering device during use, and reducing the operator's labor intensity.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A steering device includes a connector, an operating assembly rotatably disposed on the connector, and a front wheel assembly rotatably disposed below the connector, characterized in that it further includes an adjustment component disposed below the operating assembly for switching the structure of the operating assembly and the connector being connected as one unit or the operating assembly and the front wheel assembly being connected as one unit.

[0008] As an improvement, the adjustment component includes:

[0009] A fixing plate is connected to the bottom of the operating assembly, and a first sliding groove is provided on its bottom;

[0010] An adjusting rod is slidably mounted on the fixed plate;

[0011] An adjusting block is sleeved on the adjusting rod and moves back and forth with the adjusting rod, with its lower end slidably disposed in the first sliding groove;

[0012] A limiting component is installed on the adjusting rod to limit the position of the adjusting block.

[0013] As an improvement, the adjustment assembly further includes a reset member, which is sleeved on the adjustment rod and used to reset the adjustment block.

[0014] As an improvement, the fixed plate is provided with a limiting protrusion and a guide protrusion at both ends, the adjusting rod passes through the limiting protrusion and the guide protrusion, and a handle is provided at one end of the adjusting rod.

[0015] As an improvement, the front wheel assembly includes:

[0016] A connecting flange is rotatably disposed within the connecting member; the operating assembly is rotatably connected within the connecting flange via a rotating shaft;

[0017] A wheel frame, wherein the wheel frame is disposed at the bottom of the connecting flange;

[0018] The front wheel is rotatably mounted on the wheel frame via a rotating shaft.

[0019] As an improvement, the connector is provided with a first limiting groove, the upper end of the connecting flange is provided with a second limiting groove, and the adjusting block reciprocates between the first limiting groove and the second limiting groove.

[0020] As an improvement, the side of the wheel frame is provided with a first rotating position and a second rotating position. The axis of the first rotating position is located in the same plane as the rotation axis of the operating assembly. The axis of the second rotating position is offset from the rotation axis of the operating assembly. The front wheel is rotatably mounted in the first rotating position or the second rotating position.

[0021] As an improvement, the wheel frame is provided with a track connecting the first rotation position and the second rotation position, and the first rotation position and the second rotation position are located at the same horizontal height.

[0022] As an improvement, the front wheel assembly further includes a locking assembly, which is installed at both ends of the front wheel rotation axle for fixing the position of the front wheel at a first rotation position or a second rotation position.

[0023] Another objective of this utility model is to address the shortcomings of the existing technology by providing a tractor vehicle. This utility model provides the following technical solution:

[0024] A tractor unit, characterized in that it comprises: a vehicle body and a steering device as described above disposed at the front end of the vehicle body.

[0025] The beneficial effects of this utility model are as follows:

[0026] (1) This utility model changes the connection relationship between the operating assembly and the connecting parts or the front wheel by adjusting the components, so that the steering device can adapt to different working conditions of the tractor, thereby realizing the application of multiple working conditions. Moreover, the operator can flexibly adapt to different working conditions to achieve the optimal operating mode, improve the safety and smoothness of the steering device during use, and reduce the labor intensity of the operator.

[0027] (2) This utility model allows the adjusting block to switch between the first and second limiting grooves by pulling the adjusting rod, thereby realizing the quick switching of the connection relationship between the operation assembly and the vehicle body or front wheel. The structure is simple and the adjustment is convenient.

[0028] (3) By setting a first rotation position and a second rotation position on the wheel frame, the position between the rotation axis of the front wheel and the rotation axis of the operating assembly can be switched. With the help of the adjustment component, the smoothness of the operation of the tractor is further improved. In particular, when the operating assembly is connected to the vehicle body, the front wheel is adjusted to an eccentric state, which improves the sensitivity and smoothness of the vehicle body steering. At the same time, when the operating assembly is connected to the front wheel assembly, the front wheel and the rotation axis are located in the same plane, which improves the accuracy of steering and is more suitable for operation in small running spaces.

[0029] (4) By setting a transition trajectory between the first rotation position and the second rotation position, and with the setting of the locking component, the present invention can realize the rapid adjustment of the front wheel position, and can easily and efficiently adjust the front wheel position without disassembly.

[0030] In summary, this utility model has the advantages of being adaptable to multiple working conditions, quick adjustment, and convenient. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the steering device of this utility model;

[0032] Figure 2 This utility model Figure 1 Enlarged view of a portion of point A in the middle;

[0033] Figure 3 This is a cross-sectional view of the front wheel assembly mounting portion of this utility model;

[0034] Figure 4 This is a schematic diagram of the adjustment component of this utility model in use. Figure 1 ;

[0035] Figure 5 This is a schematic diagram of the adjustment component of this utility model in use. Figure 2 ;

[0036] Figure 6 This is a schematic diagram showing the front wheel of this utility model installed in the second rotation position;

[0037] Figure 7 This is a schematic diagram of the wheel frame of this utility model;

[0038] Figure 8 This is a schematic diagram of the overall tractor unit of this utility model. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] Example 1

[0042] like Figures 1-3 As shown, this embodiment provides a steering device, including: a connector 1; an operating assembly 2 rotatably mounted on the connector 1; a front wheel assembly 3 rotatably mounted below the connector 1; and an adjustment assembly 4, located below the operating assembly 2 for switching the structure of the operating assembly 2 and the connector 1 being connected as one unit or the operating assembly 2 and the front wheel assembly 3 being connected as one unit.

[0043] Preferably, the operating assembly 2 includes a hinge seat 24, an operating lever 21 hinged to the hinge seat 24, and a control knob 22 on the operating lever 21 for controlling the movement of the tractor; the control knob 22 controls the tractor to move forward, backward, and other actions.

[0044] Preferably, a rotating shaft 23 is fixedly connected to the lower part of the hinge seat 24, and a support plate 25 is fixedly mounted on the rotating shaft 23, so that the support plate 25 rotates synchronously with the rotating shaft 23, and one end of the rotating shaft 23 passes through the support plate 25. Specifically, the support plate 25 can be fixedly connected to the rotating shaft 23 by welding, threaded connection, snap-fit, or other connection methods. Of course, it is not limited to the above connection methods. For example, the rotating shaft 23 and the support plate 25 can be integrally formed.

[0045] As an improvement, such as Figure 2 , Figure 4 , Figure 5 As shown, the adjustment component 4 includes:

[0046] A fixing plate 41 is connected to the bottom of the operating assembly 2. A first sliding groove 411 is provided on the bottom of the fixing plate 41. A limiting protrusion 412 and a guide protrusion 413 are respectively provided at both ends of the fixing plate 41. Specifically, the fixing plate 41 is installed on the support plate 25 by fasteners. A second sliding groove 251 adapted to the first sliding groove 411 is provided on the support plate 25.

[0047] Adjusting rod 42, which is slidably disposed on the fixed plate 41 and passes through the limiting protrusion 412 and the guide protrusion 413. One end of the adjusting rod 42 is provided with a handle 43, which can both pull and rotate the adjusting rod and limit the position of the adjusting rod.

[0048] Adjusting block 44 is sleeved on adjusting rod 42 and moves back and forth with adjusting rod 42. Its lower end is slidably disposed in first sliding groove 411. Specifically, adjusting rod 42 is provided with limiting step 421. One end of adjusting block 44 abuts against limiting step 421 and moves back and forth with adjusting rod 42.

[0049] The limiting member 45 is installed at one end of the adjusting rod 42. The limiting protrusion 412 has a slot, through which the limiting member 45 can pass and be rotated and locked at the edge of the slot.

[0050] The reset member 46 is sleeved on the adjusting rod 42 and is used to reset the adjusting block 44. Specifically, one end of the reset member 46 abuts against one side of the adjusting block 44, and the other end abuts against the side of the guide protrusion 413.

[0051] It should be noted that, as Figure 5 As shown, by pulling the adjusting rod 42 to the right by the handle 43, the adjusting block 44 is moved, and the limiting member 45 passes through the limiting protrusion 412. Then, the adjusting rod 42 is rotated, so that the limiting member 45 rotates 90° and is locked on the right side of the limiting protrusion 412, thereby fixing the position of the adjusting block 44. Under the action of the reset member 46, the limiting member 45 is always pressed against the limiting protrusion 412, so as to achieve stable limiting.

[0052] Preferred, such as Figure 3 As shown, the connector 1 has a first limiting groove 11, the upper end of the connecting flange 32 has a second limiting groove 321, and the adjusting block 44 reciprocates between the first limiting groove 11 and the second limiting groove 321 to switch the connection mode between the operating assembly 2 and the connector 1 or the front wheel assembly 3.

[0053] Specifically, the adjusting block 44 engages with the first limiting groove 11, so that the operating assembly 2 and the connecting piece 1 are engaged as an integral structure. That is, the operating assembly 2 and the vehicle body 10 are connected as an integral structure. The vehicle body 10 is controlled to move through the operating assembly 2. When turning, the front wheel 33 at the bottom is a universal wheel structure. The vehicle body 10 is controlled to swing left and right through the operating assembly 2 to switch the direction of travel of the tractor. It is suitable for the tractor with a large turning radius and smooth operation, and is especially suitable for heavy load, low speed and large travel space conditions.

[0054] like Figure 5 As shown, when it is necessary to switch the connection state, pull the limiting member 45 and rotate it so that the limiting member 45 is aligned with the slot. Under the action of the reset member 46, the adjusting block 44 drives the adjusting rod 42 to move to the left, so that the adjusting block 44 engages with the second limiting slot 321, realizing the connection between the operating assembly 2 and the front wheel assembly 3 as an integral structure. The front wheel assembly 3 controls the rotation direction of the front wheel assembly 3 through the swing of the operating assembly 2, thereby changing the travel direction of the tractor. It is suitable for the working conditions of the tractor with a small turning radius, light load, small travel space and high travel speed.

[0055] Example 2

[0056] like Figure 3 , Figure 6 , Figure 7 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0057] In this embodiment, as Figure 3 As shown, the front wheel assembly 3 includes:

[0058] A connecting flange 32 is rotatably mounted inside the connecting member 1 via a bearing; the operating assembly 2 is rotatably connected inside the connecting flange 32 via a rotating shaft 23; specifically, a bearing is provided between the rotating shaft 23 and the inner wall of the connecting flange 32, so that the rotating shaft 23 can be rotatably mounted inside the connecting flange 32, and the connecting flange 32 can rotate, thereby driving the front wheel 33 to rotate.

[0059] Wheel frame 31, the wheel frame 31 is disposed at the bottom of the connecting flange 32;

[0060] The front wheel 33 is rotatably mounted on the wheel frame 31 via a rotating shaft.

[0061] Furthermore, such as Figure 6 , Figure 7 As shown, the wheel frame 31 has a first rotating position 311 and a second rotating position 312 on its side. The axis of the first rotating position 311 is located in the same plane as the rotating shaft 23 of the operating assembly 2. The axis of the second rotating position 312 is offset from the rotating shaft 23 of the operating assembly 2. The front wheel 33 is rotatably mounted in the first rotating position 311 or the second rotating position 312.

[0062] It should be noted that the first rotation position 311 and the second rotation position 312 can be two independently set through holes for fixing the rotation shaft of the front wheel 33. When it is necessary to switch the position of the front wheel 33 in the above two rotation positions, the rotation shaft is pulled out and the front wheel 33 is installed in the other rotation position to complete the switching of the rotation position of the front wheel 33.

[0063] Furthermore, such as Figure 7 As shown, the wheel frame 31 is provided with a track 313 connecting the first rotating position 311 and the second rotating position 312, so that the rotation axis of the front wheel 33 can move quickly between the first rotating position 311 and the second rotating position 312 along the track 313, thereby achieving efficient adjustment of the position of the front wheel 33. With the help of the locking buckle structure, the position of the front wheel 33 can be adjusted more efficiently and quickly.

[0064] Preferably, the first rotation position 311 and the second rotation position 312 are located at the same horizontal level, so that the rotation center of the front wheel remains unchanged after adjustment.

[0065] Preferred, such as Figure 1 As shown, the front wheel assembly 3 further includes a locking assembly 34, which is installed at both ends of the rotating shaft and is used to fix the front wheel 33 at the first rotating position 311 or the second rotating position 312. The locking assembly 34 can be a bolt structure for locking or a locking buckle structure. In this embodiment, the locking buckle structure is preferred to realize the quick adjustment of the position of the front wheel 33. At the same time, the locking buckle is a commonly used structure, and the detailed structure will not be described in detail in this application.

[0066] It should be noted that when the front wheel 33 changes direction actively, that is, by changing the swing direction of the front wheel 33 through external force, the direction of travel of the tractor is controlled. Preferably, the front wheel 33 is located in the first rotation position 311 to improve the smoothness, stability and convenience of the steering process.

[0067] When the front wheel 33 changes direction passively, that is, when the front wheel 33 acts as a swivel wheel, the direction of travel of the front wheel 33 is not directly changed by external force. The change of direction is achieved by the swing of the tractor body 10 in combination with the friction between the front wheel 33 and the ground.

[0068] Example 3

[0069] like Figure 8 As shown, this embodiment provides a tractor, including: a vehicle body 10, and a steering device as described in Embodiments 1 and 2, disposed at the front end of the vehicle body 10; it also includes a traction connection assembly 30 for connecting to the object to be towed, a drive assembly 40 for driving the vehicle body 10 to move, and a control assembly 50 for receiving a control signal from the steering device and transmitting it to the drive assembly 40.

[0070] Preferably, the connector 1 is detachably connected to the vehicle body 10.

[0071] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steering device, comprising a connector, an operating assembly rotatably disposed on the connector, and a front wheel assembly rotatably disposed below the connector, characterized in that, It also includes an adjustment component located below the operating assembly for switching the structure of the operating assembly and the connector being connected as one unit or the operating assembly and the front wheel assembly being connected as one unit.

2. A steering device according to claim 1, characterized in that, The adjustment component includes: A fixing plate, the fixing plate being connected to the bottom of the operating assembly; An adjusting rod is slidably mounted on the fixed plate; An adjusting block is provided on the adjusting rod and moves back and forth with the adjusting rod; A limiting component is installed on the adjusting rod to limit the position of the adjusting rod after it moves.

3. A steering device according to claim 2, characterized in that, The adjustment assembly also includes a reset component, which is sleeved on the adjustment rod and used to reset the adjustment block.

4. A steering device according to claim 2, characterized in that, The fixed plate has a limiting protrusion and a guide protrusion at both ends, and the adjusting rod passes through the limiting protrusion and the guide protrusion. One end of the adjusting rod has a handle.

5. A steering device according to any one of claims 2-4, characterized in that, The front wheel assembly includes: A connecting flange is rotatably disposed within the connecting member; the operating assembly is rotatably connected within the connecting flange via a rotating shaft; A wheel frame, wherein the wheel frame is disposed at the bottom of the connecting flange; The front wheel is rotatably mounted on the wheel frame via a rotating shaft.

6. A steering device according to claim 5, characterized in that, The connector has a first limiting groove, the upper end of the connecting flange has a second limiting groove, and the adjusting block reciprocates between the first limiting groove and the second limiting groove.

7. A steering device according to claim 5, characterized in that, The wheel frame has a first rotating position and a second rotating position on its side. The axis of the first rotating position is in the same plane as the rotation axis of the operating assembly. The axis of the second rotating position is offset from the rotation axis of the operating assembly. The front wheel is rotatably mounted in the first rotating position or the second rotating position.

8. A steering device according to claim 7, characterized in that, The wheel frame is provided with a track connecting the first rotation position and the second rotation position, and the first rotation position and the second rotation position are located at the same horizontal height.

9. A steering device according to claim 7, characterized in that, The front wheel assembly further includes a locking assembly, which is installed at both ends of the front wheel rotation axle and is used to fix the front wheel at a first rotation position or a second rotation position.

10. A tractor unit, characterized in that, include: The vehicle body and a steering device as described in any one of claims 1-9, located at the front end of the vehicle body.

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